crucial states. you can't undo a vote that's already cast. >> let's just talk very quickly, zingers. mitt romney arrived in denver today, he will speak at a rally tonight there. he will be planning zingers because everybody knows whatever they say, you get a couple good zingers in, that's the sound bite for the next four or five days until the next one of these debates, isn't it. what would you be zinging president obama? >> i think this is a terrible strategy, actually, for the romney campaign. i think if you look -- if you look at the two periods recently when presidential debates shifted the polls, it was kerry in '04, he gained three or four points on bush after those debates and it was bush against gore in 2000 who gained points mostly because gore was unlikable. in neither case was there a sort of there you go again type zinger and frankly, the idea of mitt romney, mr. phony, delivering some kind of canned zinger, that's exactly the wrong strategy and i suspect this is just misdirection by the